G21.- Secondary parkinsonism

Excludes

  • Dementia with Parkinsonism (G31.83)
  • Huntington’s disease (G10)
  • Shy-Drager syndrome (G90.3)
  • Syphilitic Parkinsonism (A52.19)

Diagnosis Codes
10
  • G21
    		•  Secondary parkinsonism
    • G21.0
    		 Malignant neuroleptic syndrome
    • G21.1
    		 Other drug-induced secondary parkinsonism
      • G21.11
    		 Neuroleptic induced parkinsonism
      • G21.19
    		 Other drug induced secondary parkinsonism
    • G21.2
    		 Secondary parkinsonism due to other external agents
    • G21.3
    		 Postencephalitic parkinsonism
    • G21.4
    		 Vascular parkinsonism
    • G21.8
    		 Other secondary parkinsonism
    • G21.9
    		 Secondary parkinsonism, unspecified
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